What engines does the C101 in-line connector diagram cover?

The document states it applies to the 4.9L, 5.0L, 5.8L, and 7.5L engines.

How many pins does the C101 connector have?

The connector drawings show 42 numbered cavities, though pins 8, 17, 28, 29, 40, 41, and 42 are listed with a dash (no circuit).

What circuit and wire color is on pin 1 of C101?

Pin 1 is circuit 101 with a GY/Y (gray/yellow) wire on both the C101F and C101M sides.

Which pin carries the black (BK) circuit 57 wire?

Pin 9 carries circuit 57 (BK) on both connector halves.

What is on pin 30 of the C101 connector?

Pin 30 is circuit 570 with a BK/W (black/white) wire.

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1994 Ford Bronco C101 In-Line Connector Pinout - 42-Pin Wire Colors & Circuits

Ford C101 in-line connector pinout diagram with C101F/C101M views and pin-circuit color-code table, 94 Bronco

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Wiring diagram of Ford C101 in-line connector showing female/male pin layouts and a pin-to-circuit color-code table for 4.9L-7.5L engines.

AI caption June 2017 · Photo 238 of 386

This document is a connector pinout reference for the C101 in-line connector on a Ford Bronco (labeled "94 Bronco"), applicable to 4.9L, 5.0L, 5.8L, and 7.5L engines. It shows face views of both halves of the 42-cavity connector — C101F (female) and C101M (male) — with each pin cavity numbered 1 through 42. Below each connector drawing is a table listing every pin number with its corresponding circuit number and wire color code, for example pin 1 = circuit 101 (GY/Y, gray/yellow), pin 9 = circuit 57 (BK, black ground), pin 22 = circuit 200 (BR), and pin 30 = circuit 570 (BK/W). Several cavities (8, 17, 28, 29, 40, 41, 42) are unpopulated, indicated by a dash. The two tables are essentially mirror images, allowing a technician to trace which circuit passes through each side of the connector. A reader can use this page to identify wires at the C101 bulkhead/in-line connector by pin position, circuit number, and insulation color when diagnosing wiring problems, testing continuity, or repairing damaged terminals on the engine or body harness of a mid-1990s Bronco.

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Frequently asked questions

What engines does the C101 in-line connector diagram cover?: The document states it applies to the 4.9L, 5.0L, 5.8L, and 7.5L engines.
How many pins does the C101 connector have?: The connector drawings show 42 numbered cavities, though pins 8, 17, 28, 29, 40, 41, and 42 are listed with a dash (no circuit).
What circuit and wire color is on pin 1 of C101?: Pin 1 is circuit 101 with a GY/Y (gray/yellow) wire on both the C101F and C101M sides.
Which pin carries the black (BK) circuit 57 wire?: Pin 9 carries circuit 57 (BK) on both connector halves.
What is on pin 30 of the C101 connector?: Pin 30 is circuit 570 with a BK/W (black/white) wire.